diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/H5B2.c | 2 | ||||
| -rw-r--r-- | src/H5B2cache.c | 10 | ||||
| -rw-r--r-- | src/H5B2int.c | 109 | ||||
| -rw-r--r-- | src/H5B2pkg.h | 32 |
4 files changed, 87 insertions, 66 deletions
@@ -196,7 +196,7 @@ H5B2_insert(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr_t addr, /* Mark B-tree header as dirty, since we updated the address of the root node */ bt2_flags |= H5AC__DIRTIED_FLAG; } /* end if */ - /* Check if we need to split the root node (equiv. to a 1->2 leaf node split) */ + /* Check if we need to split the root node (equiv. to a 1->2 node split) */ else if((bt2->depth==0 && bt2->root.node_nrec==shared->split_leaf_nrec) || (bt2->depth>0 && bt2->root.node_nrec==shared->split_int_nrec)) { /* Split root node */ diff --git a/src/H5B2cache.c b/src/H5B2cache.c index ee359aa..e23791d 100644 --- a/src/H5B2cache.c +++ b/src/H5B2cache.c @@ -142,7 +142,7 @@ H5B2_cache_hdr_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, const void *_type, vo { const H5B2_class_t *type = (const H5B2_class_t *) _type; /* Type of B-tree */ size_t node_size, rrec_size; /* Size info for B-tree */ - unsigned split_percent, merge_percent; /* Split & merge info for B-tree */ + uint8_t split_percent, merge_percent; /* Split & merge %s for B-tree */ H5B2_t *bt2 = NULL; /* B-tree info */ size_t size; /* Header size */ uint32_t stored_chksum; /* Stored metadata checksum value */ @@ -199,8 +199,8 @@ H5B2_cache_hdr_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, const void *_type, vo UINT16DECODE(p, bt2->depth); /* Split & merge %s */ - UINT16DECODE(p, split_percent); - UINT16DECODE(p, merge_percent); + split_percent = *p++; + merge_percent = *p++; /* Root node pointer */ H5F_addr_decode(f, (const uint8_t **)&p, &(bt2->root.addr)); @@ -302,8 +302,8 @@ H5B2_cache_hdr_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr, H5B UINT16ENCODE(p, bt2->depth); /* Split & merge %s */ - UINT16ENCODE(p, shared->split_percent); - UINT16ENCODE(p, shared->merge_percent); + *p++ = shared->split_percent; + *p++ = shared->merge_percent; /* Root node pointer */ H5F_addr_encode(f, &p, bt2->root.addr); diff --git a/src/H5B2int.c b/src/H5B2int.c index 98e9f3b..6de7514 100644 --- a/src/H5B2int.c +++ b/src/H5B2int.c @@ -42,12 +42,13 @@ /****************/ /* Number of records that fit into internal node */ +/* (accounts for extra node pointer by counting it in with the prefix bytes) */ #define H5B2_NUM_INT_REC(f, n, r) \ - (((n) - (H5B2_METADATA_PREFIX_SIZE + H5B2_NODE_POINTER_SIZE(f))) / ((r) + H5B2_NODE_POINTER_SIZE(f))) + (((n) - (H5B2_INT_PREFIX_SIZE + H5B2_NODE_POINTER_SIZE(f))) / ((r) + H5B2_NODE_POINTER_SIZE(f))) /* Number of records that fit into leaf node */ #define H5B2_NUM_LEAF_REC(n, r) \ - (((n) - H5B2_METADATA_PREFIX_SIZE) / (r)) + (((n) - H5B2_LEAF_PREFIX_SIZE) / (r)) /* Uncomment this macro to enable extra sanity checking */ /* #define H5B2_DEBUG */ @@ -356,7 +357,8 @@ H5B2_split_root(H5F_t *f, hid_t dxpl_id, H5B2_t *bt2, unsigned *bt2_flags_ptr, shared=H5RC_GET_OBJ(bt2_shared); HDassert(shared); - if(bt2->depth>0) { + /* Check if root is an internal node already */ + if(bt2->depth > 0) { H5B2_internal_t *old_int=NULL, *new_int=NULL; /* Pointers to old & new internal nodes */ H5B2_node_ptr_t new_int_ptr; /* Node pointer to manage new internal node */ @@ -422,11 +424,14 @@ H5B2_split_root(H5F_t *f, hid_t dxpl_id, H5B2_t *bt2, unsigned *bt2_flags_ptr, mid_record = old_root_nrec/2; /* Copy "upper half" of records to new child */ - HDmemcpy(H5B2_NAT_NREC(right_native,shared,0),H5B2_NAT_NREC(left_native,shared,mid_record+1),shared->type->nrec_size*(old_root_nrec-(mid_record+1))); + HDmemcpy(H5B2_NAT_NREC(right_native, shared, 0), + H5B2_NAT_NREC(left_native, shared, mid_record + 1), + shared->type->nrec_size * (old_root_nrec - (mid_record + 1))); /* Copy "upper half" of format root's node pointers, if the children of the root are internal nodes */ - if(bt2->depth>0) - HDmemcpy(&(right_node_ptrs[0]),&(left_node_ptrs[mid_record+1]),sizeof(H5B2_node_ptr_t)*(old_root_nrec-mid_record)); + if(bt2->depth > 0) + HDmemcpy(&(right_node_ptrs[0]), &(left_node_ptrs[mid_record + 1]), + sizeof(H5B2_node_ptr_t)*(old_root_nrec-mid_record)); /* Create new internal node to use as root */ if(H5B2_create_internal(f, dxpl_id, bt2_shared, &(bt2->root))<0) @@ -1743,7 +1748,7 @@ H5B2_merge2(H5F_t *f, hid_t dxpl_id, unsigned depth, HDassert(shared); /* Check for the kind of B-tree node to split */ - if(depth>1) { + if(depth > 1) { H5B2_internal_t *left_internal; /* Pointer to left internal node */ H5B2_internal_t *right_internal; /* Pointer to right internal node */ @@ -1753,9 +1758,9 @@ H5B2_merge2(H5F_t *f, hid_t dxpl_id, unsigned depth, right_addr = internal->node_ptrs[idx+1].addr; /* Lock left & right B-tree child nodes */ - if (NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE))) + if(NULL == (left_internal = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") - if (NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE))) + if(NULL == (right_internal = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* More setup for accessing child node information */ @@ -1778,9 +1783,9 @@ H5B2_merge2(H5F_t *f, hid_t dxpl_id, unsigned depth, right_addr = internal->node_ptrs[idx+1].addr; /* Lock left & right B-tree child nodes */ - if (NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE))) + if(NULL == (left_leaf = H5AC_protect(f, dxpl_id, child_class, left_addr, &(internal->node_ptrs[idx].node_nrec), internal->shared, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node") - if (NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE))) + if(NULL == (right_leaf = H5AC_protect(f, dxpl_id, child_class, right_addr, &(internal->node_ptrs[idx+1].node_nrec), internal->shared, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree leaf node") /* More setup for accessing child node information */ @@ -1834,22 +1839,20 @@ H5B2_merge2(H5F_t *f, hid_t dxpl_id, unsigned depth, #ifdef H5B2_DEBUG H5B2_assert_internal((hsize_t)0,shared,internal); - if(depth>1) { + if(depth>1) H5B2_assert_internal(internal->node_ptrs[idx].all_nrec,shared,left_child); - } /* end if */ - else { + else H5B2_assert_leaf(shared,left_child); - } /* end else */ #endif /* H5B2_DEBUG */ /* Unlock left node (marked as dirty) */ - if (H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0) + if(H5AC_unprotect(f, dxpl_id, child_class, left_addr, left_child, H5AC__DIRTIED_FLAG) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node") /* Delete right node & remove from cache (marked as dirty) */ - if (H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, right_addr, (hsize_t)shared->node_size)<0) + if(H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, right_addr, (hsize_t)shared->node_size)<0) HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free B-tree leaf node") - if (H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG|H5AC__DELETED_FLAG) < 0) + if(H5AC_unprotect(f, dxpl_id, child_class, right_addr, right_child, H5AC__DIRTIED_FLAG|H5AC__DELETED_FLAG) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree child node") done: @@ -2780,37 +2783,37 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, /* Lock current B-tree node */ internal_addr = curr_node_ptr->addr; - if (NULL == (internal = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, internal_addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_WRITE))) + if(NULL == (internal = H5AC_protect(f, dxpl_id, H5AC_BT2_INT, internal_addr, &(curr_node_ptr->node_nrec), bt2_shared, H5AC_WRITE))) HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree internal node") /* Get the pointer to the shared B-tree info */ - shared=H5RC_GET_OBJ(bt2_shared); + shared = H5RC_GET_OBJ(bt2_shared); HDassert(shared); /* Determine the correct number of records to merge at */ - if(depth==1) + if(depth == 1) merge_nrec = shared->merge_leaf_nrec; else merge_nrec = shared->merge_int_nrec; /* Check for needing to collapse the root node */ - /* (The root node is the only node allowed to have 1 record) */ + /* (The root node is the only internal node allowed to have 1 record) */ if(internal->nrec == 1 && ((internal->node_ptrs[0].node_nrec + internal->node_ptrs[1].node_nrec) <= ((merge_nrec * 2) + 1))) { /* Merge children of root node */ - if(H5B2_merge2(f,dxpl_id,depth,curr_node_ptr, - parent_cache_info_flags_ptr, internal,&internal_flags,0)<0) + if(H5B2_merge2(f, dxpl_id, depth, curr_node_ptr, + parent_cache_info_flags_ptr, internal, &internal_flags, 0) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node") /* Release space for root B-tree node on disk */ - if(H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, internal_addr, (hsize_t)shared->node_size)<0) + if(H5MF_xfree(f, H5FD_MEM_BTREE, dxpl_id, internal_addr, (hsize_t)shared->node_size) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free B-tree leaf node") /* Let the cache know that the object is deleted */ internal_flags |= H5AC__DELETED_FLAG; - /* Reset information in parent node pointer */ + /* Reset information in header's root node pointer */ curr_node_ptr->addr = internal->node_ptrs[0].addr; curr_node_ptr->node_nrec = internal->node_ptrs[0].node_nrec; @@ -2827,14 +2830,14 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, } /* end if */ /* Merge or redistribute child node pointers, if necessary */ else { - int cmp=0; /* Comparison value of records */ + int cmp = 0; /* Comparison value of records */ unsigned retries; /* Number of times to attempt redistribution */ /* Locate node pointer for child */ if(swap_loc) idx = 0; else { - cmp=H5B2_locate_record(shared->type,internal->nrec,shared->nat_off,internal->int_native,udata,&idx); + cmp = H5B2_locate_record(shared->type, internal->nrec, shared->nat_off, internal->int_native, udata, &idx); if(cmp >= 0) idx++; } /* end else */ @@ -2848,39 +2851,39 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, retries = 2; /* Preemptively merge/redistribute a node we will enter */ - while(internal->node_ptrs[idx].node_nrec==merge_nrec) { + while(internal->node_ptrs[idx].node_nrec == merge_nrec) { /* Attempt to redistribute records among children */ - if(idx==0) { /* Left-most child */ - if(retries>0 && (internal->node_ptrs[idx+1].node_nrec > merge_nrec)) { - if(H5B2_redistribute2(f,dxpl_id,depth,internal,idx)<0) + if(idx == 0) { /* Left-most child */ + if(retries > 0 && (internal->node_ptrs[idx + 1].node_nrec > merge_nrec)) { + if(H5B2_redistribute2(f, dxpl_id, depth, internal, idx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records") } /* end if */ else { - if(H5B2_merge2(f,dxpl_id,depth,curr_node_ptr, - parent_cache_info_flags_ptr, internal,&internal_flags,idx)<0) + if(H5B2_merge2(f, dxpl_id, depth, curr_node_ptr, + parent_cache_info_flags_ptr, internal, &internal_flags, idx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node") } /* end else */ } /* end if */ - else if(idx==internal->nrec) { /* Right-most child */ - if(retries>0 && (internal->node_ptrs[idx-1].node_nrec > merge_nrec)) { - if(H5B2_redistribute2(f,dxpl_id,depth,internal,(idx-1))<0) + else if(idx == internal->nrec) { /* Right-most child */ + if(retries > 0 && (internal->node_ptrs[idx - 1].node_nrec > merge_nrec)) { + if(H5B2_redistribute2(f, dxpl_id, depth, internal, (idx - 1)) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records") } /* end if */ else { - if(H5B2_merge2(f,dxpl_id,depth,curr_node_ptr, - parent_cache_info_flags_ptr, internal,&internal_flags,(idx-1))<0) + if(H5B2_merge2(f, dxpl_id, depth, curr_node_ptr, + parent_cache_info_flags_ptr, internal, &internal_flags, (idx - 1)) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node") } /* end else */ } /* end if */ else { /* Middle child */ - if(retries>0 && ((internal->node_ptrs[idx+1].node_nrec > merge_nrec) || - (internal->node_ptrs[idx-1].node_nrec > merge_nrec))) { - if(H5B2_redistribute3(f,dxpl_id,depth,internal,&internal_flags,idx)<0) + if(retries > 0 && ((internal->node_ptrs[idx + 1].node_nrec > merge_nrec) || + (internal->node_ptrs[idx - 1].node_nrec > merge_nrec))) { + if(H5B2_redistribute3(f, dxpl_id, depth, internal, &internal_flags, idx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTREDISTRIBUTE, FAIL, "unable to redistribute child node records") } /* end if */ else { - if(H5B2_merge3(f,dxpl_id,depth,curr_node_ptr, - parent_cache_info_flags_ptr,internal, &internal_flags,idx)<0) + if(H5B2_merge3(f, dxpl_id, depth, curr_node_ptr, + parent_cache_info_flags_ptr, internal, &internal_flags, idx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTSPLIT, FAIL, "unable to merge child node") } /* end else */ } /* end else */ @@ -2890,7 +2893,7 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, idx = 0; else { /* Actually, this can be easily updated (for 2-node redistrib.) and shouldn't require re-searching */ - cmp=H5B2_locate_record(shared->type,internal->nrec,shared->nat_off,internal->int_native,udata,&idx); + cmp=H5B2_locate_record(shared->type, internal->nrec, shared->nat_off, internal->int_native, udata, &idx); if(cmp >= 0) idx++; } /* end else */ @@ -2900,12 +2903,12 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, } /* end while */ /* Handle deleting a record from an internal node */ - if(!swap_loc && cmp==0) - swap_loc = H5B2_INT_NREC(internal,shared,idx-1); + if(!swap_loc && cmp == 0) + swap_loc = H5B2_INT_NREC(internal, shared, idx - 1); /* Swap record to delete with record from leaf, if we are the last internal node */ - if(swap_loc && depth==1) - if(H5B2_swap_leaf(f,dxpl_id,depth,internal,&internal_flags,idx,swap_loc) < 0) + if(swap_loc && depth == 1) + if(H5B2_swap_leaf(f, dxpl_id, depth, internal, &internal_flags, idx, swap_loc) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTSWAP, FAIL, "Can't swap records in B-tree") /* Set pointers for advancing to child node */ @@ -2914,9 +2917,9 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, new_node_ptr = &internal->node_ptrs[idx]; } /* end else */ - /* Attempt to remove node */ - if(depth>1) { - if(H5B2_remove_internal(f, dxpl_id, bt2_shared, depth_decreased, swap_loc, depth-1, + /* Attempt to remove record from child node */ + if(depth > 1) { + if(H5B2_remove_internal(f, dxpl_id, bt2_shared, depth_decreased, swap_loc, depth - 1, new_cache_info, new_cache_info_flags_ptr, new_node_ptr, udata, op, op_data) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDELETE, FAIL, "unable to remove record from B-tree internal node") } /* end if */ @@ -2938,7 +2941,7 @@ H5B2_remove_internal(H5F_t *f, hid_t dxpl_id, H5RC_t *bt2_shared, done: /* Release the B-tree internal node */ - if (internal && H5AC_unprotect(f, dxpl_id, H5AC_BT2_INT, internal_addr, internal, internal_flags) < 0) + if(internal && H5AC_unprotect(f, dxpl_id, H5AC_BT2_INT, internal_addr, internal, internal_flags) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release internal B-tree node") FUNC_LEAVE_NOAPI(ret_value) diff --git a/src/H5B2pkg.h b/src/H5B2pkg.h index 1ab7129..1b25ce7 100644 --- a/src/H5B2pkg.h +++ b/src/H5B2pkg.h @@ -63,7 +63,7 @@ + H5B2_SIZEOF_CHKSUM /* Metadata checksum */ \ ) -/* Size of the B-tree header on disk */ +/* Size of the v2 B-tree header on disk */ #define H5B2_HEADER_SIZE(f) ( \ /* General metadata fields */ \ H5B2_METADATA_PREFIX_SIZE \ @@ -71,21 +71,39 @@ /* Header specific fields */ \ + 1 /* Tree type */ \ + 4 /* Node size, in bytes */ \ - + 2 /* Key size, in bytes */ \ + + 2 /* Record size, in bytes */ \ + 2 /* Depth of tree */ \ - + 2 /* Split % of full (as integer, ie. "98" means 98%) */ \ - + 2 /* Merge % of full (as integer, ie. "98" means 98%) */ \ + + 1 /* Split % of full (as integer, ie. "98" means 98%) */ \ + + 1 /* Merge % of full (as integer, ie. "98" means 98%) */ \ + H5B2_NODE_POINTER_SIZE(f) /* Node pointer to root node in tree */ \ ) +/* Size of the v2 B-tree internal node prefix */ +#define H5B2_INT_PREFIX_SIZE ( \ + /* General metadata fields */ \ + H5B2_METADATA_PREFIX_SIZE \ + \ + /* Header specific fields */ \ + + 1 /* Tree type */ \ + ) + +/* Size of the v2 B-tree leaf node prefix */ +#define H5B2_LEAF_PREFIX_SIZE ( \ + /* General metadata fields */ \ + H5B2_METADATA_PREFIX_SIZE \ + \ + /* Header specific fields */ \ + + 1 /* Tree type */ \ + ) + /* Macro to retrieve pointer to i'th native record for native record buffer */ -#define H5B2_NAT_NREC(b,shared,idx) (b+(shared)->nat_off[(idx)]) +#define H5B2_NAT_NREC(b, shared, idx) ((b) + (shared)->nat_off[(idx)]) /* Macro to retrieve pointer to i'th native record for internal node */ -#define H5B2_INT_NREC(i,shared,idx) ((i)->int_native+(shared)->nat_off[(idx)]) +#define H5B2_INT_NREC(i, shared, idx) H5B2_NAT_NREC((i)->int_native, (shared), (idx)) /* Macro to retrieve pointer to i'th native record for leaf node */ -#define H5B2_LEAF_NREC(l,shared,idx) ((l)->leaf_native+(shared)->nat_off[(idx)]) +#define H5B2_LEAF_NREC(l, shared, idx) H5B2_NAT_NREC((l)->leaf_native, (shared), (idx)) /****************************/ |